Minneapolis -
Saint Paul

I've extended layovers at the Minneapolis - Saint Paul Airport on a couple of occasions to take advantage of the cool things to do near the airport (MSP). Instead of a couple short visits, you could easily combine the following into a very nice 3-day weekend. I highly recommend:

These are just a few of the many things you can do around the MSP Airport. Depending on your interests and the amount of time you have, there are plenty of options to keep you entertained and engaged during your layover or long weekend.